var Browser = new Object();

Browser.isMozilla = (typeof document.implementation != 'undefined') && (typeof document.implementation.createDocument != 'undefined') && (typeof HTMLDocument != 'undefined');
Browser.isIE = window.ActiveXObject ? true : false;
Browser.isFirefox = (navigator.userAgent.toLowerCase().indexOf("firefox") != - 1);
Browser.isSafari = (navigator.userAgent.toLowerCase().indexOf("safari") != - 1);
Browser.isOpera = (navigator.userAgent.toLowerCase().indexOf("opera") != - 1);


var Utils = new Object();

Utils.htmlEncode = function(text)
{
  return text.replace(/&/g, '&amp;').replace(/"/g, '&quot;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
}

Utils.trim = function( text )
{
  if (typeof(text) == "string")
  {
    return text.replace(/^\s*|\s*$/g, "");
  }
  else
  {
    return text;
  }
}

Utils.isEmpty = function( val )
{
  switch (typeof(val))
  {
    case 'string':
      return Utils.trim(val).length == 0 ? true : false;
      break;
    case 'number':
      return val == 0;
      break;
    case 'object':
      return val == null;
      break;
    case 'array':
      return val.length == 0;
      break;
    default:
      return true;
  }
}

Utils.isNumber = function(val)
{
  var reg = /^[\d|\.|,]+$/;
  return reg.test(val);
}

Utils.isInt = function(val)
{
  if (val == "")
  {
    return false;
  }
  var reg = /\D+/;
  return !reg.test(val);
}

Utils.fixEvent = function(e)
{
  var evt = (typeof e == "undefined") ? window.event : e;
  return evt;
}

Utils.srcElement = function(e)
{
  if (typeof e == "undefined") e = window.event;
  var src = document.all ? e.srcElement : e.target;

  return src;
}



//ajax edit
var listTable = new Object;

//listTable.query = "query";
listTable.filter = new Object;
//listTable.url = location.href.lastIndexOf("?") == -1 ? location.href.substring((location.href.lastIndexOf("/")) + 1) : location.href.substring((location.href.lastIndexOf("/")) + 1, location.href.lastIndexOf("?"));
//listTable.url += "?is_ajax=1";


/**
 * 创建一个可编辑区
 */
listTable.edit = function(obj, act, id)
{
  var tag = obj.firstChild.tagName;

  if (typeof(tag) != "undefined" && tag.toLowerCase() == "input")
  {
    return;
  }

  /* 保存原始的内容 */
  var org = obj.innerHTML;

  var val = Browser.isIE ? obj.innerText : obj.textContent;
  /* 创建一个输入框 */
  var txt = document.createElement("INPUT");
  txt.value = (val == 'N/A') ? '' : val;
  txt.style.width = (obj.offsetWidth + 22) + "px" ;

  /* 隐藏对象中的内容，并将输入框加入到对象中 */
  obj.innerHTML = "";
  obj.appendChild(txt);
  txt.focus();

  /* 编辑区输入事件处理函数 */
  txt.onkeypress = function(e)
  {
    var evt = Utils.fixEvent(e);
    var obj = Utils.srcElement(e);

    if (evt.keyCode == 13)
    {
      obj.blur();

      return false;
    }

    if (evt.keyCode == 27)
    {
      obj.parentNode.innerHTML = org;
    }
  }

  /* 编辑区失去焦点的处理函数 */
  txt.onblur = function(e)
  {

    if (Utils.trim(txt.value).length > 0)
    {
		$.ajax({
			 type: "GET",
			 url: "ajax.php",
			 dataType : "json",
			 data:   "act="+ act +"&id="+ id +"&val="+ txt.value,
			 success: function(res){ obj.innerHTML = (res.error == 0) ? res.content : org; }
		});
    }
    else
    {
      obj.innerHTML = org;
    }
  }
}